{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2026-20336", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-20336", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-09-16T20:11:44.943Z", "updatedAt": "2026-09-18T19:10:51.077Z", "importedAt": "2026-10-24T01:57:55.771Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities", "summary": "As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20336 are related to issues concerning improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.", "affected": [ { "vendor": "Cisco", "product": "Cisco Secure Firewall Adaptive Security Appliance (ASA) Software", "defaultStatus": "unknown", "versions": [ { "version": "9.16.1", "status": "affected" }, { "version": "9.16.1.28", "status": "affected" }, { "version": "9.16.2", "status": "affected" }, { "version": "9.16.2.3", "status": "affected" }, { "version": "9.16.2.7", "status": "affected" }, { "version": "9.16.2.11", "status": "affected" }, { "version": "9.16.2.13", "status": "affected" }, { "version": "9.16.2.14", "status": "affected" }, { "version": "9.16.3.3", "status": "affected" }, { "version": "9.16.3", "status": "affected" }, { "version": "9.16.3.14", "status": "affected" }, { "version": "9.16.3.15", "status": "affected" }, { "version": "9.18.1.3", "status": "affected" }, { "version": "9.18.2", "status": "affected" }, { "version": "9.16.3.19", "status": "affected" }, { "version": "9.16.3.23", "status": "affected" }, { "version": "9.18.2.5", "status": "affected" }, { "version": "9.16.4", "status": "affected" }, { "version": "9.18.2.7", "status": "affected" }, { "version": "9.16.4.9", "status": "affected" }, { "version": "9.18.2.8", "status": "affected" }, { "version": "9.16.4.14", "status": "affected" }, { "version": "9.18.3", "status": "affected" }, { "version": "9.16.4.18", "status": "affected" }, { "version": "9.18.3.39", "status": "affected" }, { "version": "9.16.4.19", "status": "affected" }, { "version": "9.18.3.46", "status": "affected" }, { "version": "9.16.4.27", "status": "affected" }, { "version": "9.18.3.53", "status": "affected" }, { "version": "9.18.3.55", "status": "affected" }, { "version": "9.16.4.38", "status": "affected" }, { "version": "9.16.4.39", "status": "affected" }, { "version": "9.18.3.56", "status": "affected" }, { "version": "9.20.1", "status": "affected" }, { "version": "9.16.4.42", "status": "affected" }, { "version": "9.18.4", "status": "affected" }, { "version": "9.20.1.5", "status": "affected" }, { "version": "9.18.4.5", "status": "affected" }, { "version": "9.16.4.48", "status": "affected" }, { "version": "9.18.4.8", "status": "affected" }, { "version": "9.20.2", "status": "affected" }, { "version": "9.16.4.55", "status": "affected" }, { "version": "9.18.4.22", "status": "affected" }, { "version": "9.20.2.10", "status": "affected" }, { "version": "9.16.4.57", "status": "affected" }, { "version": "9.18.4.24", "status": "affected" }, { "version": "9.20.2.21", "status": "affected" }, { "version": "9.16.4.61", "status": "affected" }, { "version": "9.18.4.29", "status": "affected" }, { "version": "9.20.2.22", "status": "affected" }, { "version": "9.16.4.62", "status": "affected" }, { "version": "9.18.4.34", "status": "affected" }, { "version": "9.20.3", "status": "affected" }, { "version": "9.16.4.67", "status": "affected" }, { "version": "9.16.4.70", "status": "affected" }, { "version": "9.18.4.40", "status": "affected" }, { "version": "9.23.1", "status": "affected" }, { "version": "9.22.1.1", "status": "affected" }, { "version": "9.16.4.71", "status": "affected" }, { "version": "9.20.3.4", "status": "affected" }, { "version": "9.18.4.47", "status": "affected" }, { "version": "9.20.3.7", "status": "affected" }, { "version": "9.16.4.76", "status": "affected" }, { "version": "9.20.3.9", "status": "affected" }, { "version": "9.18.4.50", "status": "affected" }, { "version": "9.22.1.3", "status": "affected" }, { "version": "9.20.3.10", "status": "affected" }, { "version": "9.22.1.2", "status": "affected" }, { "version": "9.18.4.52", "status": "affected" }, { "version": "9.20.3.13", "status": "affected" }, { "version": "9.22.1.6", "status": "affected" }, { "version": "9.18.4.53", "status": "affected" }, { "version": "9.16.4.82", "status": "affected" }, { "version": "9.22.2", "status": "affected" }, { "version": "9.20.3.16", "status": "affected" }, { "version": "9.19.1.42", "status": "affected" }, { "version": "9.18.4.57", "status": "affected" }, { "version": "9.16.4.84", "status": "affected" }, { "version": "9.23.1.3", "status": "affected" }, { "version": "9.20.3.20", "status": "affected" }, { "version": "9.22.2.4", "status": "affected" }, { "version": "9.23.1.7", "status": "affected" }, { "version": "9.20.4", "status": "affected" }, { "version": "9.22.2.9", "status": "affected" }, { "version": "9.23.1.13", "status": "affected" }, { "version": "9.20.4.7", "status": "affected" }, { "version": "9.22.2.13", "status": "affected" }, { "version": "9.18.4.66", "status": "affected" }, { "version": "9.20.4.10", "status": "affected" }, { "version": "9.23.1.19", "status": "affected" }, { "version": "9.16.4.85", "status": "affected" }, { "version": "9.22.2.14", "status": "affected" }, { "version": "9.18.4.67", "status": "affected" }, { "version": "9.24.1", "status": "affected" }, { "version": "9.18.4.68", "status": "affected" }, { "version": "9.23.1.22", "status": "affected" }, { "version": "9.20.4.14", "status": "affected" }, { "version": "9.22.2.20", "status": "affected" }, { "version": "9.18.4.71", "status": "affected" }, { "version": "9.20.4.19", "status": "affected" }, { "version": "9.23.1.26", "status": "affected" }, { "version": "9.16.4.89", "status": "affected" }, { "version": "9.22.2.32", "status": "affected" }, { "version": "9.18.4.76", "status": "affected" }, { "version": "9.22.3", "status": "affected" }, { "version": "9.24.1.5", "status": "affected" }, { "version": "9.20.4.22", "status": "affected" }, { "version": "9.24.1.9", "status": "affected" }, { "version": "9.20.4.28", "status": "affected" }, { "version": "9.22.3.5", "status": "affected" }, { "version": "9.16.4.92", "status": "affected" }, { "version": "9.18.4.135", "status": "affected" }, { "version": "9.23.1.195", "status": "affected" }, { "version": "9.20.4.30", "status": "affected" }, { "version": "9.24.1.155", "status": "affected" }, { "version": "9.23.1.32", "status": "affected" }, { "version": "9.24.1.11", "status": "affected" }, { "version": "9.20.4.34", "status": "affected" }, { "version": "9.18.4.82", "status": "affected" }, { "version": "9.24.10", "status": "affected" }, { "version": "9.20.4.235", "status": "affected" } ] }, { "vendor": "Cisco", "product": "Cisco Secure Firewall Management Center (FMC)", "defaultStatus": "unknown", "versions": [ { "version": "7.0.0", "status": "affected" }, { "version": "7.0.0.1", "status": "affected" }, { "version": "7.0.1", "status": "affected" }, { "version": "7.0.1.1", "status": "affected" }, { "version": "7.0.2", "status": "affected" }, { "version": "7.2.0", "status": "affected" }, { "version": "7.0.2.1", "status": "affected" }, { "version": "7.0.3", "status": "affected" }, { "version": "7.2.0.1", "status": "affected" }, { "version": "7.0.4", "status": "affected" }, { "version": "7.2.1", "status": "affected" }, { "version": "7.0.5", "status": "affected" }, { "version": "7.3.0", "status": "affected" }, { "version": "7.2.2", "status": "affected" }, { "version": "7.3.1", "status": "affected" }, { "version": "7.2.3", "status": "affected" }, { "version": "7.2.3.1", "status": "affected" }, { "version": "7.2.4", "status": "affected" }, { "version": "7.0.6", "status": "affected" }, { "version": "7.2.4.1", "status": "affected" }, { "version": "7.2.5", "status": "affected" }, { "version": "7.3.1.1", "status": "affected" }, { "version": "7.4.0", "status": "affected" }, { "version": "7.0.6.1", "status": "affected" }, { "version": "7.2.5.1", "status": "affected" }, { "version": "7.4.1", "status": "affected" }, { "version": "7.2.6", "status": "affected" }, { "version": "7.4.1.1", "status": "affected" }, { "version": "7.0.6.2", "status": "affected" }, { "version": "7.2.7", "status": "affected" }, { "version": "7.2.5.2", "status": "affected" }, { "version": "7.3.1.2", "status": "affected" }, { "version": "7.2.8", "status": "affected" }, { "version": "7.6.0", "status": "affected" }, { "version": "7.4.2", "status": "affected" }, { "version": "7.2.8.1", "status": "affected" }, { "version": "7.0.6.3", "status": "affected" }, { "version": "7.4.2.1", "status": "affected" }, { "version": "7.2.9", "status": "affected" }, { "version": "7.0.7", "status": "affected" }, { "version": "7.7.0", "status": "affected" }, { "version": "7.4.2.2", "status": "affected" }, { "version": "7.2.10", "status": "affected" }, { "version": "7.6.1", "status": "affected" }, { "version": "7.4.2.3", "status": "affected" }, { "version": "7.0.8", "status": "affected" }, { "version": "7.6.2", "status": "affected" }, { "version": "7.7.10", "status": "affected" }, { "version": "7.2.10.1", "status": "affected" }, { "version": "7.0.8.1", "status": "affected" }, { "version": "7.6.2.1", "status": "affected" }, { "version": "7.2.10.2", "status": "affected" }, { "version": "7.7.10.1", "status": "affected" }, { "version": "7.4.2.4", "status": "affected" }, { "version": "7.4.3", "status": "affected" }, { "version": "7.6.3", "status": "affected" }, { "version": "7.7.11", "status": "affected" }, { "version": "7.6.4", "status": "affected" }, { "version": "10.0.0", "status": "affected" }, { "version": "7.4.4", "status": "affected" }, { "version": "7.4.5", "status": "affected" }, { "version": "7.0.9", "status": "affected" }, { "version": "7.2.11", "status": "affected" }, { "version": "7.7.12", "status": "affected" }, { "version": "7.6.5", "status": "affected" }, { "version": "7.4.6", "status": "affected" }, { "version": "10.0.1", "status": "affected" }, { "version": "7.4.7", "status": "affected" } ] }, { "vendor": "Cisco", "product": "Cisco Secure Firewall Threat Defense (FTD) Software", "defaultStatus": "unknown", "versions": [ { "version": "7.0.0.1", "status": "affected" }, { "version": "7.0.1", "status": "affected" }, { "version": "7.0.1.1", "status": "affected" }, { "version": "7.0.2", "status": "affected" }, { "version": "7.0.2.1", "status": "affected" }, { "version": "7.0.3", "status": "affected" }, { "version": "7.0.4", "status": "affected" }, { "version": "7.0.5", "status": "affected" }, { "version": "7.3.0", "status": "affected" }, { "version": "7.3.1", "status": "affected" }, { "version": "7.0.6", "status": "affected" }, { "version": "7.3.1.1", "status": "affected" }, { "version": "7.4.0", "status": "affected" }, { "version": "7.0.6.1", "status": "affected" }, { "version": "7.4.1", "status": "affected" }, { "version": "7.0.6.2", "status": "affected" }, { "version": "7.4.1.1", "status": "affected" }, { "version": "7.3.1.2", "status": "affected" }, { "version": "7.6.0", "status": "affected" }, { "version": "7.4.2", "status": "affected" }, { "version": "7.0.6.3", "status": "affected" }, { "version": "7.4.2.1", "status": "affected" }, { "version": "7.0.7", "status": "affected" }, { "version": "7.7.0", "status": "affected" }, { "version": "7.4.2.2", "status": "affected" }, { "version": "7.6.1", "status": "affected" }, { "version": "7.4.2.3", "status": "affected" }, { "version": "7.0.8", "status": "affected" }, { "version": "7.6.2", "status": "affected" }, { "version": "7.7.10", "status": "affected" }, { "version": "7.7.11", "status": "affected" }, { "version": "7.0.8.1", "status": "affected" }, { "version": "7.6.2.1", "status": "affected" }, { "version": "7.7.10.1", "status": "affected" }, { "version": "7.4.2.4", "status": "affected" }, { "version": "7.4.3", "status": "affected" }, { "version": "7.6.4", "status": "affected" }, { "version": "10.0.0", "status": "affected" }, { "version": "7.4.4", "status": "affected" }, { "version": "7.0.9", "status": "affected" }, { "version": "7.4.7", "status": "affected" } ] } ] } } }